CN101363468B - Expansion screw bolt of double expansion sleeve pipe and method for manufacturing same - Google Patents
Expansion screw bolt of double expansion sleeve pipe and method for manufacturing same Download PDFInfo
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- CN101363468B CN101363468B CN 200710012402 CN200710012402A CN101363468B CN 101363468 B CN101363468 B CN 101363468B CN 200710012402 CN200710012402 CN 200710012402 CN 200710012402 A CN200710012402 A CN 200710012402A CN 101363468 B CN101363468 B CN 101363468B
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- conical head
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Abstract
The invention provides a double-expansive sleeve expansion bolt and a producing method thereof, which belong to the manufacturing technology field of construction hardware fastening pieces. The expansion bolt is characterized by consisting of a hexagonal nut(1), a spring washer(2), a flat washer(3), an expansive sleeve(4),(7), a conical expansion gasket(5), a regulating tube flat washer(6) and a conical head bolt(8). The product is suitable for installing and fixing various support elements and equipment on the wall of masonry structure of porous bricks, air bricks, concrete hollow blocks, light aggregate concrete or aerated concrete blocks. The bolt of the product can be designed and produced according to the national relevant regulations of quality, specification and standards also can be produced according to non-standard production in specific situations.
Description
Technical field
The invention provides a expansion screw bolt of double expansion sleeve pipe and manufacture method thereof, belong to architectural hardware securing member manufacturing technology field.
Background technology
The expansion bolt that uses at present basically by: the structure that the conical head bolt is joined expansion sleeve, plain washer, spring pad and a hex nut forms.be used for installing on concrete foundation or wall fixing various support elements and equipment, but due to porous brick, hollow brick, concrete hollow block, applying of light aggregate concrete or aerated concrete block masonry new material new technology new construction, re-use above-mentioned this expansion bolt, fixing various support elements and equipment are installed on the wall of above-mentioned masonry structure short expansion bolt body will be occurred, after tightening hex nut, the bolt head that protrudes metope up and down or the left and right occur tilting, long expansion bolt body is tightened hex nut in hole after, pull the bolt head that protrudes metope also the phenomenon that the body of bolt continues to go out can occur, affect the fastening quality of various support elements and equipment and body of wall.
Summary of the invention
Problem to be solved by this invention is that a expansion screw bolt of double expansion sleeve pipe and preparation method thereof is provided.This product is structure and the specification of making according to various hollow bricks and concrete hollow block, invents in conjunction with the characteristics of existing expansion bolt.Its principle of work and power is: expansion screw bolt of double expansion sleeve pipe is by the boring hole, pass hollow brick or concrete holllow building block wall surperficial, make swollen notch portion arrive at hollow brick or concrete hollow block interlayer wall inboard, tighten hex nut, 2 expansion sleeves are subject to the pressure of screw rod, impel swollen notch portion to depend on conical expansion pad and conical head, progressively form twice stubble in an opposite direction to expansion everywhere, stubble is stuck in hollow brick or concrete hollow block outer wall inboard and interlayer wall inboard separately in an opposite direction.Expansion screw bolt of double expansion sleeve pipe self is subject in hole under compressing quick-fried outside swollen mouthful twice on conical expansion pad and conical head, will be fastening voluntarily.The state of position, masonry structure that expansion bolt will be installed due to hollow brick or concrete holllow building block wall is unpredictable, and this product is provided with two patterns of Fig. 1 Fig. 2 for position and the characteristics choice for use of workmens according to construction.Wherein Fig. 2 is provided with the adjustable pipe packing ring, changes the position of adjustable pipe packing ring between 2 expansion sleeves, just can change the spacing of swollen mouthful of residing position and two expansion sleeves.The use function of adjustable pipe packing ring allows swollen port part exactly, inboard with the outer wall of hollow brick or concrete hollow block as far as possible and interlayer wall inboard intimate contact.Strengthen the fastening effect of expansion screw bolt of double expansion sleeve pipe and body of wall, improve the fastening quality that fixing various support elements and equipment are installed.This product is applicable to install and use on the body of wall of masonry structure of porous brick, hollow brick, concrete hollow block, light aggregate concrete or air-entrained concrete building block.This product is provided with 3 technical schemes, technical scheme (1): a kind of expansion screw bolt of double expansion sleeve pipe that is applied to hollow brick or concrete hollow block comprises the conical head bolt, it has screw portion and conical head part, and described screw portion is provided with screw thread; The first expansion sleeve, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described the first expansion sleeve faces and connects described conical head part, the first end of described the first expansion sleeve is provided with described conical nose and divides the swollen mouthful of mating reaction, and the interlayer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard; Conical expansion pad, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described conical expansion pad faces the second end that connects described the first expansion sleeve, and the external diameter of the second end of described conical expansion pad makes conical expansion pad outer tapered less than the external diameter of the first end of described conical expansion pad; The second expansion sleeve, be sheathed on the screw portion of described conical head bolt, it has first end and the second end, the first end of described the second expansion sleeve faces the second end that connects described conical expansion pad, the first end of described the second expansion sleeve has swollen mouthful with described conical expansion pad mating reaction, and the outer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard; Plain washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described plain washer faces the second end that connects described the second expansion sleeve; Spring washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described spring washer faces the second end that connects described plain washer; Hex nut is twisted on the screw thread of the screw portion of being located at described conical head bolt, and it has first end and the second end, and the first end of described hex nut faces the second end that connects described spring washer; Wherein, when tightening hex nut, the swollen mouth of described the first expansion sleeve depends on described conical head, progressively form first stubble in an opposite direction to expansion everywhere, described first is clashed the interlayer wall inboard that stubble is stuck in described hollow brick or concrete hollow block, swollen mouthful of described the second expansion sleeve is depended on described conical expansion pad, progressively clashes stubble to the second of expansion formation everywhere, and described second is clashed the outer wall inboard that stubble is stuck in described hollow brick or concrete hollow block.Technical scheme (2): a kind of expansion screw bolt of double expansion sleeve pipe that is applied to hollow brick or concrete hollow block, comprise, the conical head bolt, it has screw portion and conical head part, and described screw portion is provided with screw thread; The first expansion sleeve, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described the first expansion sleeve faces and connects described conical head part, the first end of described the first expansion sleeve is provided with described conical nose and divides the swollen mouthful of mating reaction, and the interlayer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard; The adjustable pipe packing ring is sheathed on the screw portion of conical head bolt, and it has first end and the second end, and the first end of described adjustable pipe packing ring faces the second end that connects described the first expansion sleeve; Conical expansion pad, be sheathed on the screw portion of described conical head bolt, it has first end and the second end, the first end of described conical expansion pad faces the second end that connects described adjustable pipe packing ring, and the external diameter of the second end of described conical expansion pad makes conical expansion pad outer tapered less than the external diameter of the first end of described conical expansion pad; The second expansion sleeve, be sheathed on the screw portion of described conical head bolt, it has first end and the second end, the first end of described the second expansion sleeve faces the second end that connects described conical expansion pad, the first end of described the second expansion sleeve has swollen mouthful with described conical expansion pad mating reaction, and the outer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard; Plain washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described plain washer faces the second end that connects described the second expansion sleeve; Spring washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described spring washer faces the second end that connects described plain washer; Hex nut is twisted on the screw thread of the screw portion of being located at described conical head bolt, and it has first end and the second end, and the first end of described hex nut faces the second end that connects described spring washer; Wherein, when tightening hex nut, the swollen mouth of described the first expansion sleeve depends on described conical head, progressively form first stubble in an opposite direction to expansion everywhere, described first is clashed the interlayer wall inboard that stubble is stuck in described hollow brick or concrete hollow block, swollen mouthful of described the second expansion sleeve is depended on described conical expansion pad, progressively clashes stubble to the second of expansion formation everywhere, and described second is clashed the outer wall inboard that stubble is stuck in described hollow brick or concrete hollow block.Technical scheme (3): a kind of expansion screw bolt of double expansion sleeve pipe that is applied to hollow brick or concrete hollow block, comprise, the conical head bolt, it has screw portion and conical head part, and described screw portion is provided with screw thread; The first expansion sleeve, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described the first expansion sleeve faces and connects described conical head part, the first end of described the first expansion sleeve is provided with described conical nose and divides the swollen mouthful of mating reaction, and the interlayer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard; Conical expansion pad, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described conical expansion pad faces the second end that connects described the first expansion sleeve, and the external diameter of the second end of described conical expansion pad makes conical expansion pad outer tapered less than the external diameter of the first end of described conical expansion pad; The second expansion sleeve, be sheathed on the screw portion of described conical head bolt, it has first end and the second end, the first end of described the second expansion sleeve faces the second end that connects described conical expansion pad, the first end of described the second expansion sleeve has swollen mouthful with described conical expansion pad mating reaction, and the outer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard; The adjustable pipe packing ring is sheathed on the screw portion of conical head bolt, and it has first end and the second end, and the first end of described adjustable pipe packing ring faces the second end that connects described the second expansion sleeve; Plain washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described plain washer faces the second end that connects described adjustable pipe packing ring; Spring washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described spring washer faces the second end that connects described plain washer; Hex nut is twisted on the screw thread of the screw portion of being located at described conical head bolt, and it has first end and the second end, and the first end of described hex nut faces the second end that connects described spring washer; Wherein, when tightening hex nut, the swollen mouth of described the first expansion sleeve depends on described conical head, progressively form first stubble in an opposite direction to expansion everywhere, described first is clashed the interlayer wall inboard that stubble is stuck in described hollow brick or concrete hollow block, swollen mouthful of described the second expansion sleeve is depended on described conical expansion pad, progressively clashes stubble to the second of expansion formation everywhere, and described second is clashed the outer wall inboard that stubble is stuck in described hollow brick or concrete hollow block.
Description of drawings
Fig. 1 is the front view of pattern one of the present invention;
Fig. 2 is the front view of pattern two of the present invention;
Fig. 3 is conical head bolt front view of the present invention;
Fig. 4 is the front view of expansion sleeve of the present invention;
Fig. 5 is the front view of conical expansion pad of the present invention;
Fig. 6 is the front view of expansion sleeve of the present invention;
The specific embodiment
This product has two kinds to make patterns, pattern one Fig. 1 by: hex nut 1, spring washer 2, plain washer 3, expansion sleeve 4, expansion sleeve 6, conical expansion pad 5, conical head bolt 7 form.
Pattern two Fig. 2 by: hex nut 1, spring washer 2, plain washer 3, expansion sleeve 4, expansion sleeve 8, conical expansion pad 5, adjustable pipe packing ring 14, conical head bolt 7 form.
Fig. 3 is the front view of conical head bolt, and the length of the conical head bolt 7 in Fig. 1 Fig. 2 is the specifications according to hollow brick and concrete hollow block, the structure customization.The length of screw thread 9 terminates in expansion sleeve 6,8 length 2/3rds left and right.Diameter is produced by the relevant regulation design of country.
Fig. 4 is Fig. 1 Fig. 2 expansion sleeve 4 front views, the length of Fig. 1 Fig. 2 expansion sleeve 4 is that thickness inside and outside according to the surface of wall adds that hollow brick or concrete hollow block outer wall thickness determine, the conical head equal diameters of the outside diameter of expansion sleeve 4 and conical head bolt, swollen mouthful 10 4 roads are arranged, swollen mouthful of 10 long 15-25MM, wide 1-2MM, swollen mouthful 10 outer part is shaped with netted decorative pattern 11, and the end face 12 of swollen mouthful 10 is interior corner cut or right angle.
Fig. 5 is the front view of conical expansion pad 5, and the internal diameter 13 of Fig. 1 Fig. 2 conical expansion pad 5 is slightly larger than conical head bolt 7 screw thread 9 external diameters.Tapered outward, interior one-tenth through hole.Conical expansion pad 5 is that cover is through in screw thread 9, stressed after with Fig. 1 expansion sleeve 4 and 6 between interaction between interaction or Fig. 2 expansion sleeve 4 and 8, the external diameter of conical expansion pad 5 is identical with the external diameter specification of same bolt conical head.
Fig. 6 is Fig. 1 expansion sleeve 6 front views.The length of expansion sleeve 6 is that the length according to conical head bolt 7 deducts hex nut 1, spring washer 2, plain washer 3, expansion sleeve 4, the occupied thickness of conical expansion pad 5, is exactly the length of expansion sleeve 6.The outside diameter of expansion sleeve 6 is with the conical head equal diameters of conical head bolt 7.Swollen mouthful 15 4 roads are arranged, swollen mouthful of 15 long 15-25MM, wide 1-2MM, the end face 16 of swollen mouthful 15 is interior corner cut or right angle.
Fig. 6 is also Fig. 2 expansion sleeve 8 front views, the length of expansion sleeve 8 is to deduct hex nut 1, spring washer 2, plain washer 3, expansion sleeve 4, conical expansion pad 5, reconcile the occupied thickness of pipe gasket 14 according to conical head bolt 7 length, is exactly the length of expansion sleeve 8.The outside diameter of expansion sleeve 8 is with the conical head equal diameters of conical head bolt 7.Swollen mouthful 15 4 roads are arranged, swollen mouthful of 15 long 15-25MM, wide 1-2MM, the end face 16 of swollen mouthful 15 is interior corner cut or right angle.
Fig. 2 is provided with adjustable pipe packing ring 14, and adjustable pipe packing ring 14 can be placed on the front of expansion sleeve 4, also can be placed on the front of expansion sleeve 8, and length can determine as required.
Above-mentioned expansion screw bolt of double expansion sleeve pipe and manufacture method thereof, except hex nut 1, other parts are all that cover is through in bolt.Two expansion sleeves 4 of Fig. 1 and 6, two expansion sleeves 4 of Fig. 2 and 8 length can be the same or different.All parts of Fig. 1 and Fig. 2 all can exchange assembling in same specification.
This product can be by national quality, specification, and the pertinent regulations design of standard is produced, and also can under specific circumstances, press non-standard production.
Claims (3)
1. expansion screw bolt of double expansion sleeve pipe that is applied to hollow brick or concrete hollow block,
Comprise
The conical head bolt, it has screw portion and conical head part, and described screw portion is provided with screw thread;
The first expansion sleeve, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described the first expansion sleeve faces and connects described conical head part, the first end of described the first expansion sleeve is provided with described conical nose and divides the swollen mouthful of mating reaction, and the interlayer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard;
Conical expansion pad, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described conical expansion pad faces the second end that connects described the first expansion sleeve, and the external diameter of the second end of described conical expansion pad makes conical expansion pad outer tapered less than the external diameter of the first end of described conical expansion pad;
The second expansion sleeve, be sheathed on the screw portion of described conical head bolt, it has first end and the second end, the first end of described the second expansion sleeve faces the second end that connects described conical expansion pad, the first end of described the second expansion sleeve has swollen mouthful with described conical expansion pad mating reaction, and the outer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard;
Plain washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described plain washer faces the second end that connects described the second expansion sleeve;
Spring washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described spring washer faces the second end that connects described plain washer;
Hex nut is twisted on the screw thread of the screw portion of being located at described conical head bolt, and it has first end and the second end, and the first end of described hex nut faces the second end that connects described spring washer;
Wherein, when tightening hex nut, the swollen mouth of described the first expansion sleeve depends on described conical head, progressively form first stubble in an opposite direction to expansion everywhere, described first is clashed the interlayer wall inboard that stubble is stuck in described hollow brick or concrete hollow block, swollen mouthful of described the second expansion sleeve is depended on described conical expansion pad, progressively clashes stubble to the second of expansion formation everywhere, and described second is clashed the outer wall inboard that stubble is stuck in described hollow brick or concrete hollow block.
2. expansion screw bolt of double expansion sleeve pipe that is applied to hollow brick or concrete hollow block,
Comprise
The conical head bolt, it has screw portion and conical head part, and described screw portion is provided with screw thread;
The first expansion sleeve, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described the first expansion sleeve faces and connects described conical head part, the first end of described the first expansion sleeve is provided with described conical nose and divides the swollen mouthful of mating reaction, and the interlayer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard;
The adjustable pipe packing ring is sheathed on the screw portion of conical head bolt, and it has first end and the second end, and the first end of described adjustable pipe packing ring faces the second end that connects described the first expansion sleeve;
Conical expansion pad, be sheathed on the screw portion of described conical head bolt, it has first end and the second end, the first end of described conical expansion pad faces the second end that connects described adjustable pipe packing ring, and the external diameter of the second end of described conical expansion pad makes conical expansion pad outer tapered less than the external diameter of the first end of described conical expansion pad;
The second expansion sleeve, be sheathed on the screw portion of described conical head bolt, it has first end and the second end, the first end of described the second expansion sleeve faces the second end that connects described conical expansion pad, the first end of described the second expansion sleeve has swollen mouthful with described conical expansion pad mating reaction, and the outer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard;
Plain washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described plain washer faces the second end that connects described the second expansion sleeve;
Spring washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described spring washer faces the second end that connects described plain washer;
Hex nut is twisted on the screw thread of the screw portion of being located at described conical head bolt, and it has first end and the second end, and the first end of described hex nut faces the second end that connects described spring washer;
Wherein, when tightening hex nut, the swollen mouth of described the first expansion sleeve depends on described conical head, progressively form first stubble in an opposite direction to expansion everywhere, described first is clashed the interlayer wall inboard that stubble is stuck in described hollow brick or concrete hollow block, swollen mouthful of described the second expansion sleeve is depended on described conical expansion pad, progressively clashes stubble to the second of expansion formation everywhere, and described second is clashed the outer wall inboard that stubble is stuck in described hollow brick or concrete hollow block.
3. expansion screw bolt of double expansion sleeve pipe that is applied to hollow brick or concrete hollow block,
Comprise
The conical head bolt, it has screw portion and conical head part, and described screw portion is provided with screw thread;
The first expansion sleeve, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described the first expansion sleeve faces and connects described conical head part, the first end of described the first expansion sleeve is provided with described conical nose and divides the swollen mouthful of mating reaction, and the interlayer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard;
Conical expansion pad, be sheathed on the screw portion of conical head bolt, it has first end and the second end, the first end of described conical expansion pad faces the second end that connects described the first expansion sleeve, and the external diameter of the second end of described conical expansion pad makes conical expansion pad outer tapered less than the external diameter of the first end of described conical expansion pad;
The second expansion sleeve, be sheathed on the screw portion of described conical head bolt, it has first end and the second end, the first end of described the second expansion sleeve faces the second end that connects described conical expansion pad, the first end of described the second expansion sleeve has swollen mouthful with described conical expansion pad mating reaction, and the outer wall that can be stuck in hollow brick or concrete hollow block after this is swollen mouthful distending is inboard;
The adjustable pipe packing ring is sheathed on the screw portion of conical head bolt, and it has first end and the second end, and the first end of described adjustable pipe packing ring faces the second end that connects described the second expansion sleeve;
Plain washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described plain washer faces the second end that connects described adjustable pipe packing ring;
Spring washer is sheathed on the screw portion of described conical head bolt, and it has first end and the second end, and the first end of described spring washer faces the second end that connects described plain washer;
Hex nut is twisted on the screw thread of the screw portion of being located at described conical head bolt, and it has first end and the second end, and the first end of described hex nut faces the second end that connects described spring washer;
Wherein, when tightening hex nut, the swollen mouth of described the first expansion sleeve depends on described conical head, progressively form first stubble in an opposite direction to expansion everywhere, described first is clashed the interlayer wall inboard that stubble is stuck in described hollow brick or concrete hollow block, swollen mouthful of described the second expansion sleeve is depended on described conical expansion pad, progressively clashes stubble to the second of expansion formation everywhere, and described second is clashed the outer wall inboard that stubble is stuck in described hollow brick or concrete hollow block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710012402 CN101363468B (en) | 2007-08-08 | 2007-08-08 | Expansion screw bolt of double expansion sleeve pipe and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710012402 CN101363468B (en) | 2007-08-08 | 2007-08-08 | Expansion screw bolt of double expansion sleeve pipe and method for manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101363468A CN101363468A (en) | 2009-02-11 |
| CN101363468B true CN101363468B (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710012402 Expired - Fee Related CN101363468B (en) | 2007-08-08 | 2007-08-08 | Expansion screw bolt of double expansion sleeve pipe and method for manufacturing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101363468B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775454A (en) * | 2013-10-11 | 2014-05-07 | 查焕民 | Middle expansion metal screw |
| CN104696331A (en) * | 2013-12-10 | 2015-06-10 | 王振国 | Hooked expansion bolt |
| CN104696330A (en) * | 2013-12-10 | 2015-06-10 | 王振国 | Expansion bolt for hollow brick wall |
| CN103758316B (en) * | 2014-01-06 | 2016-02-17 | 茅金声 | The decorative wall panels mounting structure of wall of aerated concrete block and method |
| CN105805116B (en) * | 2016-04-28 | 2018-03-13 | 佛山市杭兴五金件有限公司 | Double expansion tube expansion bolts |
| CN109404392A (en) * | 2018-11-12 | 2019-03-01 | 中国船舶重工集团公司第七〇九研究所 | A kind of fast assembling-disassembling fastener |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5042888A (en) * | 1990-06-06 | 1991-08-27 | Yugen Kaisha Shinjoseisakusho | Anchor bolt having a spring |
| CN2257870Y (en) * | 1995-12-20 | 1997-07-16 | 刘有志 | Expansion bolt assembly |
| CN1160130A (en) * | 1996-03-19 | 1997-09-24 | 吴明欣 | Expansion bolt |
| CN2292933Y (en) * | 1996-02-02 | 1998-09-30 | 应文华 | Multisection expansion bolt |
| CN2457392Y (en) * | 2000-12-14 | 2001-10-31 | 周荣 | Multiple section expansion bolt |
| CN2878769Y (en) * | 2006-03-02 | 2007-03-14 | 郭瑞平 | Expanding screw |
-
2007
- 2007-08-08 CN CN 200710012402 patent/CN101363468B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5042888A (en) * | 1990-06-06 | 1991-08-27 | Yugen Kaisha Shinjoseisakusho | Anchor bolt having a spring |
| CN2257870Y (en) * | 1995-12-20 | 1997-07-16 | 刘有志 | Expansion bolt assembly |
| CN2292933Y (en) * | 1996-02-02 | 1998-09-30 | 应文华 | Multisection expansion bolt |
| CN1160130A (en) * | 1996-03-19 | 1997-09-24 | 吴明欣 | Expansion bolt |
| CN2457392Y (en) * | 2000-12-14 | 2001-10-31 | 周荣 | Multiple section expansion bolt |
| CN2878769Y (en) * | 2006-03-02 | 2007-03-14 | 郭瑞平 | Expanding screw |
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| Publication number | Publication date |
|---|---|
| CN101363468A (en) | 2009-02-11 |
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